Adjustable chair seat



G. B. TRAVIS ADJUSTABLE CHAIR SEAT Filed Feb. 15. 1928 Nov. 12, 1929.

INVENTOR G'e yeB.Tm /5,

ATTORNEY Patented Nov. 12, 1929 UNITED STATES PATENT OFFICE ADJUSTABLECHAIR SEAT Application filed February 15, 1828. Serial No. 254,479.

This invention relates to adjustable chair seats, and it has for itsprimary object the provision of a device of this character which can beused satisfactorily in connection with lunch counters or the like andwherein the seat is characterized by means that will permit of quick andconvenient adjustment thereof with respect to the counter, enabling theoccupant to be comfortably accommodated when eating from the counter,and

whereby the occupant, when desiring to Vacate the seat, may effectactuations or adjustments thereof to afford maximum clearance betweenthe seat and the counter.

A further object of the invention resides in the provision of a seat ofthis character having means whereby it can be adjusted to suit varyingrequirements and wherein, and when the seat occupies a position ofselected adjustment the wearing apparel of the occupant will not be aptto be caught between the seat and the counter or become accidentallyentangled with the seat.

A still further object of the invention is to provide a seat of thischaracter which can be used in conjunction with lunch counters or tablesand wherein the seat is provided with means for normally maintaining aposition of adjustment thereof with respect to the counter and inalinement with positions of, other seats of the same kind, therebygiving uniformity or order in the arrangement of the respective seatsfor an appeal to the esthetic. A still further object of the inventionis to provide an adjustable seat characterized by working parts thatwill be practically noiseless when in use.

A still further object is to provide ade- 0 vice of this character whichcan be used in conjunction with well-known forms of verticalseat-supporting standards or pedestals.

In the accompanying drawings,

Figure 1 is a top plan View of the seat with 5 a part broken away forthe purpose of clearness;

Figure 2 is a view in side elevation showing the seat supported from astandard or pedestal, parts being broken away for the purposeofclearness;

Figure 3 is a bottom plan view with parts in section;

Figure 1 is a transverse section taken substantially on the line 44 ofFigure 3.

In carrying the invention into practice, use is made of a seat mounting5, preferably formed of sheet steel, and provided with a horizontal bodyportion 6 and parallel side flanges 7, 7. In plan View, the body 6 issubstantially rectangular and adjacent to each corner of the body andpermanently carried thereby is a journal box 8. These journal boxesfunction as hangers for lower anti-friction rollers 9 and upperanti-friction rollers 10. These rollers may be constructed of rubberl,steel or other suitable well-known materia Extending in a downwarddirection from the center of the body 6 is a pin 11 which is adapted tobe inserted in a recess 12 in the upper end of a pedestal 13. Thepedestal is of the type carrying a base flange 14 adapted to be securedby the fastenings 15 to a floor. The pin 11 may be associated with thestandard 13 in any suitable well-known manner, so that the seat roper,which I will refer to presently, can e revolved around the axis of thepedestal.

A track structure is illustrated at 16 and same comprises either acasing formed of sui table material or a sheet of steel llp-StIllCk togive to the structure a substantially rectangular configuration. Thetrack structure is provided with parallel spaced-apart U-shaped rails17, 17, the upper flanges 19 of which form surfaces over which therollers 10 are adapted to ride and the lower flanges :20 of which formsimilar surfaces for the free support of the rollers 9. If desired, therollers 9 and 10, likewise the track structure, may be formed ofcompressed fiber, so as to render the parts practically noiseless whenin movement. The respective ends of the track structure 16 are providedwith elastic bumpers 21 which are adapted to come in contact with theseat mounting so as to absorb the shocks and jars imparted to the partsand reduce the noise when the parts are thrust against one 'another.

, At one end the track structure is provided with a spring or otheryielding means 22 which is operatively associated with the mounting 5,so that the seat proper is normally urged in one direction. In thismanner and when a number of the seats are arranged, say, in a parallelrow, alinement thereof can be effected automatically.

From the recitation of parts herein advanced it follows that the seat isat all times under the manual control of the user. When it is desired tobe accommodated by the seat, the operator merely advances pressurethereagainst in order to give the desired clearance between the forwardedge of the seat and an adjacent edge of the counter with which it isassociated, so that ample clearance is had to permit the occupant tocomfortably arrange himself at the counter. On leaving the seat, theoccupant merely impels the same in a direction following the urgingpower of the spring 22 until the desired clearance is had between theforward edge of the seat and the counter.

I claim as my invention:

An adjustable seat comprising a seat mounting constructed to provide ahorizontal body portion of rectangular outline having a pivot pindepending therefrom and adapted tobemountedinapedestal,parallelsideflanges depending from the body portion, journal boxes on theflanges at opposite ends thereof and projecting from the outer sidesthereof, upper and lower rollers rotatably mounted in the journal boxes,and a track structure adapted to be secured underneath'a seat andconstructed to provide a rectangular shaped frame having end members andparallel spaced apart U shaped rails having upper and lower horizontalflanges, the seat mounting being interposed between said rails, with itsupper and lower rollers interposed between the upper and lower flangesof the rails for rolling contact with the flanges, the end members ofthe track structure operating to definitely limit the movement of thetrack structure on the seat mounting in either direction, and cushioningelements on the end members adapted to engage the seat mounting.

GEORGE B. TRAVIS.

